Gas-purification electrode



Aug. 18, 1925.

v H. EDLER GAS PURIFICATION ELECTRODE Filed July 25. 1924 i Patented Au 18, 1925.

-' UNITED STATES HANS EDLEB, 0F GELSENKIRCHEN, GERMANY.

GAS-PURIFICATION ELECTRODE.

Application filed Jul as, 1924. Serial No. mazes. 5

To all whom it may concern.

Be it known that 1, Thus EDLER, a citizen of Germany, and a resident of Gelsenkirchen, State of Prussia, Germany, have invented certain new and useful Improvements in Gas-Purification Electrodes, of which the following is a specification.

,This invention refers broadly to electrodes for the separating out of certain, mostly dust-like constituents of gases in the electric purification process thereof. In the electric purification of gases, as heretofore practiced, in which the electrodes were arranged transversely to the direction of the gas current, the separating electrodes have generally been constructed as sieves, chains, adj acently suspended sieves, shutters or the like. All such electrodes, however, have the disadvantage that they are clogged up by dust, and that the deposited dust does not drop 1 off entirely, but only a small portion thereof, and that, asis for instance the case with the slat-like'shutter constructions, the gas current is given an unfavorable direction for the further treatment.

These drawbacks are overcome according to this invention by an electrode which is substantially composed of a plurality of profilated ,or crescent-shaped iron bars spacedly arranged and formed and disposed in such a manner that the gas current, after having impinged upon them in a substantially perpendicular direction, is allowed to flow'alongthe same, and has its direction of,

flow changed in such a manner that it leaves the electrodes in a direction, most favorably disposed for the further treatment. By proceeding in this manner the efiect is produced, that the gas current to be purified in consequence of the substantially perpendicular impact ,upon the depositing surfaces,-

and the subsequent change of directionof flowis brought intointimate contact with the separating surfaces, while its direction of flow becomes the most favorable for the further treatment. The arrangement presents the further advantage that the gas distributipn remains uniform during the pas-. sage of the gas through the apparatus and that'the occurrence. of spaces. not filled with the gas and whirling motion are avoided, so-

- as toobtain a uniformly reliable and intense separation of the dust and otherconstituents. The invention will be further described with referenceto the accompanying draw- I ing showing by way of example a preferred construction of separating electrodes in which Fig. 1 represents alongitudinal yer- .tical section of apparatus;

Fig. 2 a plan view of the same with the top removed; I Fig. 3 the essential parts of the apparatus and their relation to the flow of gases.

In a frame which is indicated by the bars,

In order to be able to adjust the position of the iron bars relatively to the gas current, so as to produce the direction most suitable for the further treatment of the gases, it is recommended thatthe iron bars be arranged so as tobe rotatable on their longitudinal axes. This may be most easily accomplished by moving the bars 1 and 2 in the reverse directions, the said bars 1 and 2 being so supported that they can have such motions and the blades being pivotally connected to the bars as shown to enable them to turn with reference thereto The invention is not limited to the particular means and arrangement shown in the drawing which is merely exemplary, but "is susceptible of various other forms. and modifications of realization of the. principles thereof, and without deviating from the spirit of the invention, as pointed out in the appended claims.

1. Gas treating electrode, comprising a is a diagrammatic view showing plurality of profilated metal bars, means to deliver the gas under treatment onto said bars in a substantially perpendicular direc tion thereto, means for connecting said bars .to an electricgcircuit, means on the bars to cause-the gas to flow along the bars and then to leave them substantially in the initial (11- rection. y g y 2. Gas treating electrode, comprising a plurality of-flangediron bars spacedly ar ranged, a supporting-frame for said bars,

means for connecting the bars and frame to an electric circuit, means to deliver the gas under treatment onto said bars substantially at right angle thereto, and means to cause the gas, after having flowed along the bars to assume the most favorable direction for further treatment after leaving the bars.

3. Gas treating -electrode, comprising a plurality of spacedly arranged flanged iron bars, the cross sectional shape of each of said bars being substantially crescent shaped, and supporting means for said bars, the bars presenting a normal surface to the incoming gas and a tangential surface to the outgoing gas, the bars and supporting means being mounted on insulating supports and connected to an electric circuit.

4. Gas treating electrode, comprising a plurality of spaced, longitudinally flanged reaeyse metal bars, and supporting means in Which said bars are arranged, so as to be rotatable on their longitudinal axes.

5. Gas treating electrode, comprising a plurality of s aced longitudinally flanged metal bars, an supporting means in which said bars are arranged so as to be rotatable x v Gas treating electrode, comprising a connecting rods for rotating a plurality of the bars upon their axes.

In testimony whereof I afix my s1gnature.

DR. HANS EDLER. 

